CN106089576A - A kind of realize in air-blower control the method that two set wind detection sensors automatically switch - Google Patents
A kind of realize in air-blower control the method that two set wind detection sensors automatically switch Download PDFInfo
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- CN106089576A CN106089576A CN201610444031.5A CN201610444031A CN106089576A CN 106089576 A CN106089576 A CN 106089576A CN 201610444031 A CN201610444031 A CN 201610444031A CN 106089576 A CN106089576 A CN 106089576A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 238000005259 measurement Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/10—Purpose of the control system
- F05B2270/101—Purpose of the control system to control rotational speed (n)
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/329—Azimuth or yaw angle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
- Wind Motors (AREA)
Abstract
The present invention relates to a kind of realize in air-blower control the method that two set wind detection sensors automatically switch, it comprises the following steps: step 1, unit are standby, calculates unit power curve under local atmospheric density, enters step 2；Step 2, judge whether incision, the judgement wind speed whether value bigger in two mean wind speed values is cut as unit；Step 3, calculate the mean power in certain period of time according to real output, and by the anti-mean wind speed value released in time period in theory of the method for interpolation: step 4, the judgement wind speed whether value bigger in two mean wind speed values is cut out as unit.Due to the fact that and have employed the method that two set wind detection sensors automatically switch, theoretical wind speed actual power calculated by interpolation method and two sets wind speed measured by air velocity transducer are made comparisons, automatic decision wind detection sensor whether fault, and using measuring the value measured by sensor accurately as controlling input, strengthen the safety of unit.
Description
Technical field
The present invention relates to wind-driven generator field, particularly relating to one, to realize in air-blower control two set wind detection sensors automatic
The method of switching.
Technical background
The wind detection sensor being currently used for wind power generating set includes that air velocity transducer and wind transducer mainly have two kinds
Type, one is mechanical sensor, and another kind is ultrasonic sensor.The northerly cold district of mechanical sensor and wet
Spend bigger Southern Mountain Areas of China and winter icing conditions easily occurs, or than more serious area, the feelings that bearing is stuck occur at dust storm
Condition, thus cause measurement error relatively big, and ultrasonic sensor the most easily occurs that in misty rain sky signal disturbing affects measurement essence
Degree.There is certain drawback in two set wind detection sensors, therefore compares badly at some weather conditions the most under given conditions at present
Generally it is mounted with two sets different types of survey hearsay in the wind power generating set of side's installation or offshore wind turbine simultaneously
Sensor.If the wind detection sensor of wind power generating set breaks down or measurement error is bigger, unit will be caused to occur cannot be just
Often switch in and out, go off course to problems such as wind are inaccurate.Generally when controlling, only use what the most a set of survey wind sensing was gathered
Data, and only when it obvious fault occurs, just can artificially be realized and need manual switching to another set of wind detection sensor.
Summary of the invention
It is an object of the invention to overcome disadvantages described above, it is provided that a kind of automatic decision fault and can automatically switch realize wind
During machine controls, two overlap the method that wind detection sensors automatically switch.
The technical scheme is that, a kind of realize in air-blower control the method that two set wind detection sensors automatically switch, its
Comprise the following steps:
Step 1, unit are standby, using local air density values and unit power curve under standard air density as unit control
The reference input of system, calculates unit power curve under local atmospheric density, enters step 2；
Step 2, judge whether incision, when unit is in holding state, and wind speed less than the cut-out wind speed of unit design time, in real time
Relatively the measured value of two air velocity transducers, calculates two air velocity transducers mean wind speed in certain period of time respectively
Value, judgement wind speed value bigger in two mean wind speed values whether cut as unit, when bigger in mean wind speed value
When value is more than incision wind speed, enters step 3, otherwise return step 1；
Step 3, be in generating state when unit, and wind speed less than the cut-out wind speed of unit design time, the unit drawn with step 1
Based on power curve under local atmospheric density, calculate the mean power in certain period of time according to real output,
And by the anti-mean wind speed value released in time period in theory of the method for interpolation, this mean wind speed value is passed with two wind speed
Sensor within the time period measured by the mean wind speed value that draws contrast:
If two air velocity transducers of step 3-1 within the time period measured by the meansigma methods that draws and the anti-mean wind speed value pushed away
Difference all within setting value, then take the measured value of the minimum sensor corresponding to value of difference as controlling input, enter
Step 4；
If one of them difference of step 3-2 is more than setting value, another difference is less than setting value, then with difference less than setting value
The measured value of corresponding air velocity transducer is as controlling input, if difference is continuous more than the air velocity transducer corresponding to setting value
The difference in multiple cycles is all higher than setting value, then can determine that this air velocity transducer breaks down, and system provides warning message, enters
Step 4；
If difference continuous multiple cycles of the measured value of two air velocity transducers of step 3-3 and value of calculation are all higher than setting value,
If now the measured value of two wind transducers is more consistent, then can determine that all breaking down of two air velocity transducers, machine
Group is shut down and need to process accordingly；If now the measured value of two wind transducers is different, then system is not in use by working as
The data that the wind transducer that previous crops is control is gathered, and automatically that the measured value of another wind transducer is defeated as controlling
Enter, control unit and again go off course to wind, further according to actual power anti-dianoetic wind speed, and by this value and two air velocity transducers
Measured value compares again, if two air velocity transducers within the time period measured by the meansigma methods that draws with counter push away average
The difference of air speed value is all within setting value, then the measured value taking the minimum sensor corresponding to value of difference is defeated as controlling
Entering, and can determine that first time breaks down as the wind transducer controlled corresponding to input, system provides warning message, enters
Step 4；If one of them difference is more than setting value, another difference is less than setting value, then be less than corresponding to setting value with difference
The measured value of air velocity transducer as controlling input, and can determine that for the first time as the wind transducer corresponding to controlling to input
Breaking down, system provides warning message, enters step 4；If two difference continuous multiple cycles are all higher than setting value, then can sentence
Fixed two air velocity transducers all break down, and one of them wind transducer also breaks down, and unit is by shutdown and need to carry out
Corresponding process；
Step 4, be in generating state when unit, and wind speed close to the cut-out wind speed of unit design time, compare two wind speed in real time
The measured value of sensor, calculates two air velocity transducers mean wind speed value in certain period of time respectively, average by two
The judgement wind speed whether value bigger in air speed value cuts out as unit, if value bigger in mean wind speed value is more than cutting out wind
Speed, then enter step 1, otherwise return step 3.
The method have the benefit that, in the control of wind power generating set, have employed two set wind detection sensors certainly
The method of dynamic switching, using unit power curve under local atmospheric density as foundation, passes through interpolation method by actual power
The theoretical wind speed calculated and two sets wind speed measured by air velocity transducer are made comparisons, and automatic decision wind detection sensor is the most former
Barrier, and the value measured by sensor accurately will be measured as controlling input, thus improve availability and the generated energy of unit,
Reduce the load of unit, strengthen the safety of unit.
Accompanying drawing explanation
Fig. 1 is the flow chart of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further detailed.
Referring to the drawings, a kind of realizing in air-blower control the method that two set wind detection sensors automatically switch, it includes following step
Rapid:
Step 1, unit are standby, using local air density values and unit power curve under standard air density as unit control
The reference input of system, calculates unit power curve under local atmospheric density, enters step 2；
Step 2, judge whether incision, when unit is in holding state, and wind speed less than the cut-out wind speed of unit design time, in real time
Relatively the measured value of two air velocity transducers, calculates two air velocity transducers mean wind speed in certain period of time respectively
Value, judgement wind speed value bigger in two mean wind speed values whether cut as unit, when bigger in mean wind speed value
When value is more than incision wind speed, enters step 3, otherwise return step 1；
Step 3, be in generating state when unit, and wind speed less than the cut-out wind speed of unit design time, the unit drawn with step 1
Based on power curve under local atmospheric density, calculate the mean power in certain period of time according to real output,
And by the anti-mean wind speed value released in time period in theory of the method for interpolation, this mean wind speed value is passed with two wind speed
Sensor within the time period measured by the mean wind speed value that draws contrast:
If two air velocity transducers of step 3-1 within the time period measured by the meansigma methods that draws and the anti-mean wind speed value pushed away
Difference all within setting value, then take the measured value of the minimum sensor corresponding to value of difference as controlling input, enter
Step 4；
If one of them difference of step 3-2 is more than setting value, another difference is less than setting value, then with difference less than setting value
The measured value of corresponding air velocity transducer is as controlling input, if difference is continuous more than the air velocity transducer corresponding to setting value
The difference in multiple cycles is all higher than setting value, then can determine that this air velocity transducer breaks down, and system provides warning message, enters
Step 4；
If difference continuous multiple cycles of the measured value of two air velocity transducers of step 3-3 and value of calculation are all higher than setting value,
If now the measured value of two wind transducers is more consistent, then can determine that all breaking down of two air velocity transducers, machine
Group is shut down and need to process accordingly；If now the measured value of two wind transducers is different, then system is not in use by working as
The data that the wind transducer that previous crops is control is gathered, and automatically that the measured value of another wind transducer is defeated as controlling
Enter, control unit and again go off course to wind, further according to actual power anti-dianoetic wind speed, and by this value and two air velocity transducers
Measured value compares again, if two air velocity transducers within the time period measured by the meansigma methods that draws with counter push away average
The difference of air speed value is all within setting value, then the measured value taking the minimum sensor corresponding to value of difference is defeated as controlling
Entering, and can determine that first time breaks down as the wind transducer controlled corresponding to input, system provides warning message, enters
Step 4；If one of them difference is more than setting value, another difference is less than setting value, then be less than corresponding to setting value with difference
The measured value of air velocity transducer as controlling input, and can determine that for the first time as the wind transducer corresponding to controlling to input
Breaking down, system provides warning message, enters step 4；If two difference continuous multiple cycles are all higher than setting value, then can sentence
Fixed two air velocity transducers all break down, and one of them wind transducer also breaks down, and unit is by shutdown and need to carry out
Corresponding process；
Step 4, be in generating state when unit, and wind speed close to the cut-out wind speed of unit design time, compare two wind speed in real time
The measured value of sensor, calculates two air velocity transducers mean wind speed value in certain period of time respectively, average by two
The judgement wind speed whether value bigger in air speed value cuts out as unit, if value bigger in mean wind speed value is more than cutting out wind
Speed, then return step 1, otherwise return step 3.
Claims (1)
1. realizing the method that in air-blower control, two set wind detection sensors automatically switch, it comprises the following steps:
Step 1, unit are standby, using local air density values and unit power curve under standard air density as unit control
The reference input of system, calculates unit power curve under local atmospheric density, enters step 2；
Step 2, judge whether incision, when unit is in holding state, and wind speed less than the cut-out wind speed of unit design time, in real time
Relatively the measured value of two air velocity transducers, calculates two air velocity transducers mean wind speed in certain period of time respectively
Value, judgement wind speed value bigger in two mean wind speed values whether cut as unit, when bigger in mean wind speed value
When value is more than incision wind speed, enters step 3, otherwise return step 1；
Step 3, be in generating state when unit, and wind speed less than the cut-out wind speed of unit design time, the unit drawn with step 1
Based on power curve under local atmospheric density, calculate the mean power in certain period of time according to real output,
And by the anti-mean wind speed value released in time period in theory of the method for interpolation, this mean wind speed value is passed with two wind speed
Sensor within the time period measured by the mean wind speed value that draws contrast:
If two air velocity transducers of step 3-1 within the time period measured by the meansigma methods that draws and the anti-mean wind speed value pushed away
Difference all within setting value, then take the measured value of the minimum sensor corresponding to value of difference as controlling input, enter
Step 4；
If one of them difference of step 3-2 is more than setting value, another difference is less than setting value, then with difference less than setting value
The measured value of corresponding air velocity transducer is as controlling input, if difference is continuous more than the air velocity transducer corresponding to setting value
The difference in multiple cycles is all higher than setting value, then can determine that this air velocity transducer breaks down, and system provides warning message, enters
Step 4；
If difference continuous multiple cycles of the measured value of two air velocity transducers of step 3-3 and value of calculation are all higher than setting value,
If now the measured value of two wind transducers is more consistent, then can determine that all breaking down of two air velocity transducers, machine
Group is shut down and need to process accordingly；If now the measured value of two wind transducers is different, then system is not in use by working as
The data that the wind transducer that previous crops is control is gathered, and automatically that the measured value of another wind transducer is defeated as controlling
Enter, control unit and again go off course to wind, further according to actual power anti-dianoetic wind speed, and by this value and two air velocity transducers
Measured value compares again, if two air velocity transducers within the time period measured by the meansigma methods that draws with counter push away average
The difference of air speed value is all within setting value, then the measured value taking the minimum sensor corresponding to value of difference is defeated as controlling
Entering, and can determine that first time breaks down as the wind transducer controlled corresponding to input, system provides warning message, enters
Step 4；If one of them difference is more than setting value, another difference is less than setting value, then be less than corresponding to setting value with difference
The measured value of air velocity transducer as controlling input, and can determine that for the first time as the wind transducer corresponding to controlling to input
Breaking down, system provides warning message, enters step 4；If two difference continuous multiple cycles are all higher than setting value, then can sentence
Fixed two air velocity transducers all break down, and one of them wind transducer also breaks down, and unit is by shutdown and need to carry out
Corresponding process；
Step 4, be in generating state when unit, and wind speed close to the cut-out wind speed of unit design time, compare two wind speed in real time
The measured value of sensor, calculates two air velocity transducers mean wind speed value in certain period of time respectively, average by two
The judgement wind speed whether value bigger in air speed value cuts out as unit, if value bigger in mean wind speed value is more than cutting out wind
Speed, then enter step 1, otherwise return step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444031.5A CN106089576B (en) | 2016-06-21 | 2016-06-21 | A kind of method for realizing that two sets of wind detection sensors automatically switch in air-blower control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610444031.5A CN106089576B (en) | 2016-06-21 | 2016-06-21 | A kind of method for realizing that two sets of wind detection sensors automatically switch in air-blower control |
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| Publication Number | Publication Date |
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| CN106089576A true CN106089576A (en) | 2016-11-09 |
| CN106089576B CN106089576B (en) | 2018-10-30 |
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| CN201610444031.5A Active CN106089576B (en) | 2016-06-21 | 2016-06-21 | A kind of method for realizing that two sets of wind detection sensors automatically switch in air-blower control |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989882A (en) * | 2017-12-29 | 2019-07-09 | 北京天诚同创电气有限公司 | The standby controlling method and device of wind power generating set |
| CN110930639A (en) * | 2019-10-30 | 2020-03-27 | 南京航空航天大学 | Airborne wind shear alarm system and method for helicopter |
| CN112000654A (en) * | 2020-08-25 | 2020-11-27 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | High-speed railway strong wind monitoring data quality control method and device |
| CN113063898A (en) * | 2021-03-24 | 2021-07-02 | 中国大唐集团科学技术研究院有限公司中南电力试验研究院 | Thermal power station carbon emission monitoring method and system based on block chain |
| CN116696683A (en) * | 2023-05-11 | 2023-09-05 | 三峡智控科技有限公司 | Wind speed and direction indicator fault judging method and detecting device of wind driven generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150942A1 (en) * | 2010-06-04 | 2011-12-08 | Vestas Wind Systems A/S | An improved wind turbine doppler anemometer |
| CN102418662A (en) * | 2011-12-27 | 2012-04-18 | 东方电气集团东方汽轮机有限公司 | Safety operation control system of wind driven generator |
| KR20130032530A (en) * | 2011-09-23 | 2013-04-02 | 삼성중공업 주식회사 | Apparatus for measuring velocity and direction of wind for wind power generator |
| CN105604786A (en) * | 2016-01-04 | 2016-05-25 | 西北工业大学 | Non-real-time variable pitch control system and control method of wind turbine generator system |
-
2016
- 2016-06-21 CN CN201610444031.5A patent/CN106089576B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011150942A1 (en) * | 2010-06-04 | 2011-12-08 | Vestas Wind Systems A/S | An improved wind turbine doppler anemometer |
| KR20130032530A (en) * | 2011-09-23 | 2013-04-02 | 삼성중공업 주식회사 | Apparatus for measuring velocity and direction of wind for wind power generator |
| CN102418662A (en) * | 2011-12-27 | 2012-04-18 | 东方电气集团东方汽轮机有限公司 | Safety operation control system of wind driven generator |
| CN105604786A (en) * | 2016-01-04 | 2016-05-25 | 西北工业大学 | Non-real-time variable pitch control system and control method of wind turbine generator system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989882A (en) * | 2017-12-29 | 2019-07-09 | 北京天诚同创电气有限公司 | The standby controlling method and device of wind power generating set |
| CN109989882B (en) * | 2017-12-29 | 2020-04-10 | 北京天诚同创电气有限公司 | Standby control method and device of wind generating set |
| CN110930639A (en) * | 2019-10-30 | 2020-03-27 | 南京航空航天大学 | Airborne wind shear alarm system and method for helicopter |
| CN110930639B (en) * | 2019-10-30 | 2021-06-22 | 南京航空航天大学 | Airborne wind shear alarm system and method for helicopter |
| CN112000654A (en) * | 2020-08-25 | 2020-11-27 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | High-speed railway strong wind monitoring data quality control method and device |
| CN113063898A (en) * | 2021-03-24 | 2021-07-02 | 中国大唐集团科学技术研究院有限公司中南电力试验研究院 | Thermal power station carbon emission monitoring method and system based on block chain |
| CN116696683A (en) * | 2023-05-11 | 2023-09-05 | 三峡智控科技有限公司 | Wind speed and direction indicator fault judging method and detecting device of wind driven generator |
| CN116696683B (en) * | 2023-05-11 | 2024-01-16 | 三峡科技有限责任公司 | Wind speed and direction indicator fault judging method and detecting device of wind driven generator |
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